Synthesis of and Catalytic Linear Cross-Dimerizations by an Electron-Deficient Cyclic Diene Complex of Ruthenium(0)
作者:Masafumi Hirano、Yukino Tanaka、Nobuyuki Komine
DOI:10.1021/acs.organomet.8b00645
日期:2018.11.26
ruthenium(0) complex [Ru(η6-naphthalene)(η4-Ph-dbcot)] (1a: Ph-dbcot = 5-phenyldibenzo[a,e]cyclooctatetraene) is newly prepared in 53% yield. The IR experiment of [Ru(η4-2,3-dimethylbutadiene)(η4-Ph-dbcot)(CO)] (2a) shows this formal zerovalent ruthenium complex to be very electron-deficient, even though the Ph-dbcot ligand does not have any particular electron-withdrawing functional group. Complex 1a shows
钌(0)络合物的[Ru(η 6 -萘)(η 4 -Ph-dbcot)](1A:PH-dbcot = 5苯基二苯并[一,ë ]环辛四烯)以53%的产率制备新。的IR实验的[Ru(η 4 -2,3-二甲基)(η 4 -Ph-dbcot)(CO)](2A)示出了该正式零价钌络合物是非常缺电子,即使PH-dbcot配体不具有任何特定的吸电子官能团。络合物1a显示出对共轭二烯与丙烯酸甲酯之间的交叉二聚具有高区域选择性的高催化活性。